I'd like to see Rox's quiver pop up again. It looks great on rangers and other bow users.
Sandals, for all weights, but they'd be particularly nice to see in the heavy category where everything is high boots. I don't necessarily want to wear thigh-high metal in the jungle or the desert.
Armor skins with shorter tops in the medium category, which is mostly greatcoats and dusters. Vests, doublets, leather or chain shirts, barbarian armor to show off the chest and midriff, and so on are all options that would bring more variety to the category.